COREOPSIS 



duced, spatulate, often entire : heads 1.5-2 in. broad; 

 rays often with a few dark spots above the orange base ; 

 outer involucre ^ shorter than the inner : alsene orbic- 

 •ular, broadly winged ; pappus very minute. Tex. B.M. 

 3460. S.H. 1:270. 



COEIABIA 



373 



Coreopsis lanceotata. Single flower natural size. 



9. gn^andifldra, Nutt. ( C. Ungipes, Hook. ) . Perennial : 

 simple or few-fld., glabrous, 1-2 ft. high: Ivs. opposite, 

 basal wanting, lower cauline spatulate or lanceolate, en- 

 tire, upper divided into several linear entire divisions : 

 heads 1-2.5 in. broad: akene orbicular, papillose, broadly 

 winged ; pappus paleaceous. Southern U. S. Sweet, 

 B.F.G. 175. B.M. 3586. Gn. 47:995. Mn. 5:201. 



BB. Bays elliptical, entire or nearly so. 



0. Lk^af divisions entire. 



D. Vivisions lanceolate, large. 



10. major, Walt. (C. senifblia, Michx.). Perennial: 

 tall and stout, 2-3 ft. high, pubescent, much branched 

 above : Ivs. opposite, basal wanting, lower cauline 

 small, upper sessile, 2-3 in. long, palraately 3-divided, 

 divisions equal, broadly lanceolate, acute : heads lM-2 in. 

 broad : akenes obovate-elliptical, winged, summit 2- 

 toothed. Southeastern U. S. 



Var. (Emleri, Britton. Smooth, leaf-divisions more 

 attenuate at the base. B.M. 3484 as C. senifolia. 



Var. linearis. Small. Smooth : leaf-divisions narrow, 

 2-i lines wide. 



11. tripteris, Linn. Perennial : very large and stout, 

 4-8 ft. high, branched above, glabrous : Ivs. opposite, 

 petioled, 4-6 in. long, pinnatifld, divisions broadly or 

 narrowly lanceolate : heads medium, pale : akene ob- 

 long, narrowly winged; pappus wanting. Cent. U. S. 



DD. Divisions broadly linear to filiform. 



12. palm&ta, Nutt. (C. prwcox, Fres.). Perennial : 

 tall and stout, lK-3 ft. high, sparingly branched at the 

 summit : Ivs. opposite, thick, cuneate, 2.5 in. long, 3- 

 cleft to the middle, divisions broadly linear, midrib 3- 

 nerved below: heads lK-2Hin. broad : akenes oblong, 

 narrowly winged ; pappus minute or obsolete. Cent. 

 U.S. R.H. 1845:265. 



13. delphiniifilia, Lam. Perennial: glabrous, branched 

 above, 1-3 ft. high : Ivs. opposite, sessile, 2-3 in. long, 

 the basal wanting, pinnatifld, divisions 3-7, broadly 

 linear ; disk dark brown : akene obovate, narrowly 

 winged; pappus teeth short. Southeastern U. S. 



14. verticillita, Linn. (C. tenuifdlia, Ehrh.). Peren- 

 nial: sparingly branched, 1-3 ft. high: basal Ivs. want- 

 ing, cauline opposite, sessile, 1-2-ternately divided, di- 

 visions linear-filiform : heads 1-lJ^ in. broad : akenes 

 obovate-wedge-shaped, narrowly winged; pappus nearly 

 obsolete. E.-istern U. S. 



cc. Leaf-divisions coarsely serrate or incised. 



15. triohoBp6rma, Michx. Annual : tall, 2-5 ft. high, 

 branched near the summit, glabrous: Ivs. 2^ in. long, 

 the lower wanting, pinnatifld, on very short petioles, 

 divisions narrowly lanceolate, acute, serrate or incised; 

 rays pale : akene 4 lines long, cuneate, flat, wingless, 

 ciliate and hairy; awns 2, very short. Eastern U. S. 



Var. tenuiloba, Gray. Leaf -segments linear. 



16. aristdsa, Michx. Annual : like the last, but Ivs. 

 slightly pubescent beneath : akenes broader, with slen- 

 der awns as long as the body. Cent. U. S. B.M. 6462. 

 R.H. 1869:72. 



17. aiirea, Ait. Annual: glabrous, 1-3 ft. high: Ivs. 

 pinnatifld, the upper sometimes simple; divisions from 

 lanceolate to linear, sparingly incised; outer involucral 

 bracts narrowly linear, inner black-punctate : akenes 

 broadly cuneate, very small (1-2 lines long), nearly 

 glabrous ; pappus of two blunt, chaffy, very short teeth. 

 Southeastern U. S. — Very variable. 



C. aristdsa. Michx., C. involucrata, Nutt.. and C. tncho- 

 spC^rma, Mielix., are now usually placed under Bidens.— C. At- 

 kiiisnniana, Dougl., differs from C. tinctoria in its larger size 

 and winged akenes. Annual. Western U. S.— C. auriculdta, 

 Linn. Perennial : low, stoloniferous, hirsute : Ivs. petioled, 

 short, oval, mostly entire: heads large, very long, pedunoled: 

 probably not in the trade. Southern U. S.— C. involucrata, 

 Nutt. Annual : like C. aristosa. but heads larger, involucral 

 bracts more numerous, awns shorter. Cent. U. S.— C. Leavcn- 

 wortfiii, Torr. & Gray. Annual: leaf -divisions linear-spatulate: 

 rays cuneate, Inberl, yellow: awns 2, slender: akene winged. 

 Soutliern V. S.— C. nurlala, Nutt. Perennial : rush-like, Ivs. 

 mostly basal, Inne, filiform ; r.iys rose-colored; wing of akene 



C. argtita, Pursh=C. aurea. Ait.— G. atropurpitrea, Hort.= 

 Thelesperma, sp.— C Boykinidna, Nutt.=C. grandiflora.— O. 

 dichdtoma, Michx.=C. angustifolia.— C. divernfblia. DC.=C. 

 auriculata.— 0. linifdlia. Nutt.=C. angustifolia. — 0. marmo- 

 rata, Hort.=C. tinctoria.— O. oblongifdlia. Nutt.=C. lanceolata. 



K. M. WiEGAND. 



COBIANDEB is the seed-like fruit of Coriandrum 

 sativum, Linn., an umbelliferous annual of S. Europe. 

 The plant grows 2-3 ft. high, glabrous, strong-smelling, 

 with Ivs. divided into almost thread-like divisions, and 

 small-white fls. The plant is easily grown in garden 

 soil. It occasionally becomes spontaneous about old 

 yards. The seeds (or fruits) are used as seasoning and 

 flavoring in pastries, confections and liquors, although 

 they are less known in this country than caraway. The 

 plant is occasionally cultivated in Amer. gardens along 

 with sweet herbs. 



COEIANDEUM. See Coriander. 



COBIABIA (eorium, skin, leather ; as frutex coria- 

 rius, a shrub used for tanning leather, was described by 

 Pliny). Coriaridceo!. Shrubs or perennial herbs : 

 Ivs. deciduous, entire, ,3-9-nerved, opposite and disti- 

 chous ; fls. polygamous-moncecious in slender racemes, 

 small; petals and sepals 5; stamens 10: fr. berry-like, 

 consisting of 5 1-seeded nutlets enclosed by the en- 

 larged and colored petals. About 8 species in Himal. 

 and E. Asia, Mediterranean region, N. Zealand and S. 

 Amer. Ornamental shrubs or herbs, with slender, arch 



